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938M Wheel Loader

  • OVERVIEW
  • SPECIFICATIONS
  • STANDARD / OPTIONAL
PRODUCT DESCRIPTION

The Cat 938M Small Wheel Loader sets the standard for productivity, fuel efficiency and operator comfort. The improved optimized Z-bar loader linkage delivers the quick loading performance of a traditional Z-bar with the parallelism and load handling capability of a tool carrier. A high torque, low speed C7.1 ACERT engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard. Meets Tier 4 Final/Stage IV emission standards with an environmentally friendly, Clean Emission Module designed to manage itself so you can concentrate on your work. Experience the new industry benchmark.

Engine
  • Engine Model - Cat® C7.1 ACERT™
  • Maximum Rated Gross Power - ISO 14396 - 188 HP
  • Maximum Rated Gross Power - ISO 14396 (DIN) - 190 HP
  • Maximum Rated Gross Power - ISO 14396 (DIN) (Performance Power Mode: Range 1-4) - 190 HP
  • Maximum Rated Gross Power - ISO 14396 (Performance Power Mode: Range 1-4) - 188 HP
  • Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4) - 1800 r/min
  • Rated Net Power - 182 HP
  • Rated Net Power - 1,800 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Performance Power Mode: Range 1-4) - 184 HP
  • Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4) - 182 HP
  • Buckets
  • Bucket Capacities - 2.5-5.0 m3 (3.3-6.5 yd3)
  • Weights
  • Operating Weight - 36216 lb
  • Engine
  • Maximum Gross Power - 188 HP
  • Bore - 4 in
  • Stroke - 5 in
  • Displacement - 427 in³
  • Cab
  • ROPS - ISO 3471: 2008
  • FOPS - ISO 3449: 2005 LEVEL II
  • Air Conditioning System
  • Air Conditioning - The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential – 1430). The system contains 1.9 kg of refrigerant which has a CO2 equivalent of 2.717 metric tonnes.
  • Cab
  • Note (1) - Declared sound levels per ISO 6396:2008* while in Performance Power Mode: – Standard cab: 68 ±3 dB(A) and Deluxe cab
  • Note (2) - * Measurements were conducted with cab doors and windows closed and at 70% of maximum engine cooling fan speed. Sound level may vary at different engine cooling fan speeds.
  • Engine
  • Emissions - Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
  • Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) - 648 lb/ft
  • Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) - 648 lb/ft
  • Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4) - 628 lb/ft
  • Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*) - 628 lb/ft
  • Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) - 621 lb/ft
  • Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) - 621 lb/ft
  • Maximum Rated Gross Power - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*) - 175 HP
  • Maximum Rated Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*) - 173 HP
  • Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*) - 1600 r/min
  • Note (1) - * Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
  • Note (2) - Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed.
  • Note (3) - No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
  • Note (4) - Spark arrestor performance as standard – Meets performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).
  • Rated Net Power - 1,600 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) - 169 HP
  • Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) - 171 HP
  • Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) - 168 HP
  • Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4) - 186 HP
  • Loader Hydraulic System
  • Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Dump (at Maximum Lift Height) - 1.5/1.7 seconds
  • Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Float Down (Maximum Lift to Ground Level) - 2.7/2.7 seconds
  • Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Raise (Ground Level to Maximum Lift) - 5.5/6.2 seconds
  • Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Total Cycle Time - 9.7/10.6 seconds
  • Lift Cylinder, Double Acting - Bore Diameter - 4.7 in
  • Lift Cylinder, Double Acting - Rod Diameter - 2.6 in
  • Lift Cylinder, Double Acting - Stroke - 31.1 in
  • Maximum Flow - Implement Pump - 50 gal/min
  • Maximum Flow - Implement Pump - 3rd Function* - 50 gal/min
  • Maximum Flow - Implement Pump - 4th Function Maximum Flow* - 42 gal/min
  • Maximum Working Pressure - Implement Pump - 4061 psi
  • Note (1) - * 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
  • Note (2) - Implement system uses a dedicated load sensing variable displacement pump with dual double acting lift cylinders and a single double acting tilt cylinder.
  • Note (3) - Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
  • Relief Pressure - Tilt Cylinder - 4351 psi
  • Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure - 4061 psi
  • Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure - 4351 psi
  • Tilt Cylinder, Double Acting - Bore Diameter - 5.9 in
  • Tilt Cylinder, Double Acting - Rod Diameter - 3.5 in
  • Tilt Cylinder, Double Acting - Stroke - 21.9 in
  • Operating Specifications
  • Full Turn Tip Load - 22107 lb
  • Power Train
  • Brakes - Parking - Spring applied hydraulically released
  • Brakes - Service - Outboard wet disc
  • Front Axle - Fixed
  • Front Axle - Traction Aid - Standard - Locking differential
  • Note (1) - Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
  • Note (2) - Differential front locking axle can be engaged on the go at full torque up to 20 km/h (12.4 mph) on the 938M.
  • Note (3) - Offset rims available to meet European roading requirements.
  • Rear Axle - Oscillating
  • Rear Axle - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65 - ± 10.5 degrees
  • Rear Axle - Oscillation Angle by Tire Size - 23.5 R25 - ± 7 degrees
  • Rear Axle - Oscillation Angle by Tire Size - Solid Tires, 750/65, 620/65, Skidder - ± 7 degrees
  • Rear Axle - Traction Aid - Optional - Limited slip differential
  • Service Refill Capacities
  • Cooling System - 8.5 gal (US)
  • Diesel Exhaust Fluid (DEF) Tank - 5 gal (US)
  • Engine Crankcase - 5.3 gal (US)
  • Front Axles - 9.2 gal (US)
  • Fuel Tank - 51.5 gal (US)
  • Hydraulic System - Including Tank - 44.9 gal (US)
  • Hydraulic Tank - 23.8 gal (US)
  • Rear Axles - 9.2 gal (US)
  • Transmission - Gear Box - 2.9 gal (US)
  • Steering
  • Maximum Flow - Steering Pump - 34 gal/min
  • Maximum Steering Torque - 0° (Straight Machine) - 42506 lb/ft
  • Maximum Steering Torque - 40° (Full Turn) - 31398 lb/ft
  • Maximum Working Pressure - Steering Pump - 3500 psi
  • Note (1) - Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
  • Note (2) - Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
  • Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed - 2.3 s
  • Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited - 3.1 s
  • Steering Cylinder, Double Acting - Bore Diameter - 3.1 in
  • Steering Cylinder, Double Acting - Rod Diameter - 2 in
  • Steering Cylinder, Double Acting - Stroke - 15.7 in
  • Transmission
  • Forward and Reverse - Range 1* - 1-13 km/h (0.6-8 mph)
  • Forward and Reverse - Range 2 - 8 mile/h
  • Forward and Reverse - Range 3 - 17 mile/h
  • Forward and Reverse - Range 4 - 25 mile/h
  • Note - * Creeper control allows maximum speed range adjustability from 1 km/h (0.6 mph) to 13 km/h (8 mph) in Range 1 through the secondary display when equipped. Factory default is 7 km/h (4.4 mph).
  • Standard Equipment
  • POWER TRAIN
  • HYDRAULICS
  • ELECTRICAL
  • OPERATOR ENVIRONMENT
  • OTHER STANDARD EQUIPMENT
  • Optional Equipment
  • OPTIONAL EQUIPMENT
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